https://docs.cloud.google.com/dotnet/docs/reference/Google.Cloud.Compute.V1/latest/Google.Cloud.Compute.V1.MetadataFilter.Types
Compute Engine v1 API - Class MetadataFilter.Types (3.27.0) | .NET client libraries | Google Cloud...
https://docs.oracle.com/cd/E21043_01/apirefs.1111/e13948/org/apache/openjpa/lib/meta/MetaDataFilter.html
MetaDataFilter (OpenJPA 1.1.0 API)
openjpaapi